1.an attraction between molecules can be called a
select one:
a. polar bond
b. covalent bond
c. ionic bond
d. hydrogen bond
2.the reason water sticks to the inside of a graduated cylinder like the image below is because of
select one:
a. adhesion
b. cohesion
c. polar molecules
d. hydrogen bonding
3.water molecules are composed of
select one:
a. 2 oxygen atoms and 1 hydrogen atom
b. 2 oxygen atoms and 2 hydrogen atoms
c. 1 oxygen atom and 1 hydrogen atom
d. 1 oxygen atom and 2 hydrogen atoms
4.plants are able to absorb water from the ground through their roots because
select one:
a. the atoms in water are ionically bonded together
b. water is considered the universal solvent
c. capillary action causes the water to rise up in tubes
d. water has a high level of surface tension
5.why are water molecules attracted to each other?
select one:
a. when the temperature changes, water molecules move toward each other.
b. polar molecules have partially charged positive and negative ends.
c. the sharing of electrons keeps them stuck together.
d. some molecules are positively charged and others are negatively charged, so opposites attract.
6.water is
select one:
a. an atom
b. a compound
c. an element
d. a mixture
7.water molecules stick to themselves. this is known as
select one:
a. adhesion
b. capillary action
c. cohesion
d. polar molecules
8.how does the high heat capacity of water life exist on earth?
select one:
a. it makes us sweat more.
b. it makes ice float in water.
c. it allows water molecules to stick together.
d. it keeps the air temperature relatively stable.
9.insects such as water striders can walk on water because:
select one:
a. of aerodynamics
b. of surface tension
c. of density
d. of temperature
can be disrupted by the addition of soap into water.
select one:
a. density
b. temperature
c. surface tension
d. density and temperature
11.due to the fact that ice is less dense than water in its liquid
select one:
a. snow falls to the ground
b. ice storms are very dangerous
c. aquatic life can survive in a pond that has frozen over at the surface
d. cars will hydroplane if one drives too fast on a wet roadway